The phrase under consideration refers to the intersection of common closing phrases used in professional electronic mail correspondence and the puzzle format known as a crossword. Instances of typical closing remarks, such as “Sincerely,” “Best regards,” or “Thank you,” frequently appear as answers within the grid of a crossword puzzle. The clues associated with these answers often allude to their usage at the end of an email.
This confluence of professional communication and recreational wordplay highlights the pervasiveness of email in modern business culture. The inclusion of these sign-offs in crosswords indicates their widespread recognition and cultural significance. Furthermore, their relatively short length and frequent usage make them suitable for crossword puzzle construction, contributing to the accessibility and enjoyability of the game.